On the role of the Δ(1232) on the transverse nuclear response in the (e, e′) reaction

The transverse nuclear response to an electromagnetic probe which is limited to create (or destroy) a particle-hole (ph) or delta-hole (Δh) pair is analyzed. Correlations of the random phase approximation (RPA) type and self-energy insertions are considered. For RPA correlations we have developed a...

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Detalles Bibliográficos
Autor principal: Bauer, Eduardo
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 1998
Materias:
Física
Physics
Random phase approximation
Transverse plane
Residual
Nuclear matter
Atomic physics
Nuclear theory
Momentum transfer
Nuclear physics
Meson
Self-energy
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123096
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123096
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Physics
Random phase approximation
Transverse plane
Residual
Nuclear matter
Atomic physics
Nuclear theory
Momentum transfer
Nuclear matter
Nuclear physics
Meson
Self-energy
spellingShingle Física
Physics
Random phase approximation
Transverse plane
Residual
Nuclear matter
Atomic physics
Nuclear theory
Momentum transfer
Nuclear matter
Nuclear physics
Meson
Self-energy
Bauer, Eduardo
On the role of the Δ(1232) on the transverse nuclear response in the (e, e′) reaction
topic_facet Física
Physics
Random phase approximation
Transverse plane
Residual
Nuclear matter
Atomic physics
Nuclear theory
Momentum transfer
Nuclear matter
Nuclear physics
Meson
Self-energy
description The transverse nuclear response to an electromagnetic probe which is limited to create (or destroy) a particle-hole (ph) or delta-hole (Δh) pair is analyzed. Correlations of the random phase approximation (RPA) type and self-energy insertions are considered. For RPA correlations we have developed a scheme which includes explicitly the Δ and the exchange terms. Self-energy insertions over ph and Δh bubbles are studied. Several residual interactions based on a contact plus a (π + ϱ)-meson exchange potential are used. All calculations are performed in non-relativistic nuclear matter. The main effect of the Δ is to reduce the intensity over the nuclear quasi-elastic peak. Exchange RPA terms are very important, while the terms with self-energy insertions depend strongly on the residual interaction employed. Our results are compared with data for 40 Ca at momentum transfer q = 410 and q = 550 MeV/c, where the longitudinal response is also briefly discussed.
format Articulo
Preprint
author Bauer, Eduardo
author_facet Bauer, Eduardo
author_sort Bauer, Eduardo
title On the role of the Δ(1232) on the transverse nuclear response in the (e, e′) reaction
title_short On the role of the Δ(1232) on the transverse nuclear response in the (e, e′) reaction
title_full On the role of the Δ(1232) on the transverse nuclear response in the (e, e′) reaction
title_fullStr On the role of the Δ(1232) on the transverse nuclear response in the (e, e′) reaction
title_full_unstemmed On the role of the Δ(1232) on the transverse nuclear response in the (e, e′) reaction
title_sort on the role of the δ(1232) on the transverse nuclear response in the (e, e′) reaction
publishDate 1998
url http://sedici.unlp.edu.ar/handle/10915/123096
work_keys_str_mv AT bauereduardo ontheroleofthed1232onthetransversenuclearresponseintheeereaction
bdutipo_str Repositorios
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